fix agenda list box and create event on chat

src/app/pages/chat/chat.page.ts

@@ -297,15 +297,19 @@ export class ChatPage implements OnInit {
     }
   }
 
-  openNewEventPage(data: any) {
-    this.taskParticipants = data.members.map((val) => {
-      return {
-        Name: val.name,
-        EmailAddress: val.username + "@" + environment.domain,
-        IsRequired: "true",
-      }
-    });
-    this.groupRoomId = data.roomId;
+  openNewEventPage(data?) {
+
+    if(data) {
+      this.taskParticipants = data.members.map((val) => {
+        return {
+          Name: val.name,
+          EmailAddress: val.username + "@" + environment.domain,
+          IsRequired: "true",
+        }
+      });
+      this.groupRoomId = data.roomId;
+    }
+    
     this.closeAllDesktopComponents();
     if (window.innerWidth < 701) {